Shoe for third-rail electric cars.



L. A. MOGOUBRIE &; C. F. RAYDURE.

SHOE FOR THIRD RAIL ELECTRIC CARS.

Patented Feb. 28, 191i.

APPLICATION FILED .APILZ. 1909.

WITNESSES A TTURHEY.

rm: Nonms PETERS ca, \usmivcrorv. n c.

LOUDEN A. MCCOUBRIE AND GHARLES @l l ltlE.

F. RAYDURE, OF PHILADELPHIA,

PENNSYLVANIA.

SHOE F03 THIRD-RAIL ELEGTRIQ CAR-S.

Application filed April. 242

To all whom it may concern:

Be it known that we, LoUDnN McConnnrn and CrrAnLns ll. ltaynnnn both citi- Zens of the United States, residing at the city of Philadelpl'iia in the county of Philadelphia and State of Pennsylvania, have jointly invented certain new and useful. linproven'ients in Shoes for Third-Rail Electric i Cars, of which tie following is a specification.

Our invention has relation to a shoe with a removable contact-piece for third-rail electric railway cars; and in such connection it relates to the particular constructive rangeinent of the same, for the defined purpose.

The principal objectof our invention is to provide a shoe for a third-rail electric railway car, in which the shoe proper, can be replaced, without disturbing associatedv parts for rendering operative.

Uur invention will be more fully understood. from the following description taken in connection with the accompanying drawings forming part hereof, in which l ignre 1. is a top or plan view of a, shoe with the rail contact-piece located underneath, embodx-ing in constructive arrangement essentially the main features of our said invention. Fig. 2, is front elevational view thereof. 3., is vertical central sectional view on the line y, 7/. of 2; and Fig. is end elevational view of the shoe of Figs. 1 and 2 showing die detailed arrangement thereof.

In the drawings a, is a shoe or contactinembcr and (L1, device to which the shoe or contact-member is pivotally attached and arranged so as to be adjustablv secured to a plate adapted to form part of a car-truck frame, not shown but which attachment to said plate in a preferred manner, will be hereinafter fully described.

The shoe-member a. has a central perforated portion arranged to provide a bearing to fit between two end perforated portions of the device Formed with too central portion of the member a, is a tapering projection a, as clearly illustrated in Figs. 3 and 4, for a purpose to be presently dc scribed. Through the perforated portions of both member a and device a is ins rted a pin (L to form a pivotal connection of the one member a, with the other member 05 as clearly shown in Figs. 1 and 3. The re- Specification of Letters Patent.

Patented l eh. 28, 1911.

Serial no. 492,017.

spective ends of the pin a are perforated to receive cotter-pins c and (1*, Fig. 1, so that when the cotter-pins are removed, the pin (l may be readily withdrawn and thereby the shoeanemoer (1, released from its connecting device a. This d vice (a is preferably arran ed with an upper rear ratcheted 3. to register with a ratchetilace a", intended to be secured to the can -l frame. The ratchet surface of the device by registering with the ratchet-plate ;-:r' permits of acjustably securing to required position, the said device a, carrying shoe-member a, by means of tightenii'ig a. and (1 as clearly shown in Fig.

quickly and securely brought into proper.

operative relation with respect to the electrified rail of a road-bed, not shown. The said shoe-member a, is recessed in the front mulerneath portion to receive the rail contact-piece a which is held thereto, by means of removable bolts, liigs. 1, 3 and 4:. As shown. t contact-piece or shoe a is beveled off adjacent to the respective edges thereof as clearly sh own in Fig. 1. The connecting de vice c of the shoe member a, is provided with a block-like extension Z), in cross-section as shown in 3, perforated at 6 and provided with a chamber Z) into which the tapering projection a of the member 0., extends to limit the range of movement of the shoe or contaet-n'ieinber held under spring tension with respect to the supporting member a by any pressures exerted at the forward end of the shoe or contact member a. in use of the same.

The connecting device a, Fig. 3, is cut away to provide space for intcrposing a helical spring Z therebetwcen, the ends of which spring engage respectively, a seatingcap Z), arranged in the offset portion of the device c and a cup-shaped recess 5 of the member a, with a bolt 5 extending through the rear opening of the shoe-men'iber a, about the cup-shaped recess 6 and with the enlarged threaded portion of the bolt 6 entering the threaded offset extension 6, of the device (2 and carrying thereon a nut 7J As wear of the contact-piece a of the shoe-member (1, takes place from the underside by manually turning the bolt 5 in the threaded portion of the projection l), of the supporting member a the required maintained tension of the helical spring 6 will thereby be readily compensated for to tension the saring If, more firmly between the cap Z)", and cup-shaped recess 6 as clearly illustrated in Fig. 3, and then tightening the nutb thereon so as to be brought into contact with the upper surface of the said projection b, of the said member (0, without having to disarrange either the electrical or mechanical parts of the said appliance to accomplish such take-up or in replacing a worn contact piece or shoe a The two members a and (1 can be parted by the foregoing arrangement thereof, by removing first the cotter-pins a and (E, and then withdrawing the pin a 0 and 0 are insulated electric wire connections of the shoemember. These wires are detachably connected with binding posts (Z and (Z and e and 6 of a plate 6, which latter is suitably bolted to the upper portion of the device (H, as clearly shown in Figs. 1, 2 and 4.

Having thus described the nature and objects of our invention, what we claim as new and desire to secure by Letters Patent is A shoe for electric railway cars, comprising a supporting-member and a member provided with a removable contact-shoe, said members pivoted together, said supportingmember in one portion formed into an extension having a chamber, said contact-shoe member provided with a projection extending into said chamber, a bolt extending through both of said members, a spring surrounding said bolt, a stop for one end of said spring and mounted on said bolt, said bolt provided with a threaded enlargement screwed into one of said members and hearing against said stop, a nut carried on said enlargement and electrical connections for said contact-shoe member.

In witness whereof, we have hereunto set our signatures, in the presence of two subscribing witnesses.

' LOUDEN A. MOCQUBRIE. CHARLES F. RAYDUR-E.

\Yitnesses J. \ViiL'rna DOUGLASS, THOMAS M. Surrn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. C. 

